18376389

素因数分解:

$3^5\times {\mathrm{47}}^1\times {\mathrm{1609}}^1$

素因数の和:1671

約数の個数: 24

約数和(自身を含む): 28129920

約数和(自身を除く): 9753531

約数列:

[1, 3, 9, 27, 47, 81, 141, 243, 423, 1269, 1609, 3807, 4827, 11421, 14481, 43443, 75623, 130329, 226869, 390987, 680607, 2041821, 6125463, 18376389]

約数ペア:

[(1, 18376389), (3, 6125463), (9, 2041821), (27, 680607), (47, 390987), (81, 226869), (141, 130329), (243, 75623), (423, 43443), (1269, 14481), (1609, 11421), (3807, 4827)]